Iosgety thomas jen-



g, nis

Fig. :3 r--a bat/tum pian View M1@ same() und While in ehe :uw in thegmllm by bami' y als@ pvotzaly iumwww pms through the lm i@ and the im'-lavar@ ly has;

,vond sind brackets. Kt link QJ; erlzenils through euch of the firstjoint-.el 2l of the fingere, unil is; movubly connected with u. pivot inthe joint l?, -while the other en l of the link is movuhly secured. tothe trnnsverse shaft Q3.

A movable connection between the joints 17 :nul "2l is provided in theform oi i linlc QG, pivotcd about the shalt 13, und having one endsecured to the joint 2l, while the other cnil, indicated et 27, ispivotnlly sccured to :in arm Q8, the front portion ot' which is movnblymounted in the front joint 18 of the finger.

The thumb of the ertiicinl hand ie shown as' consisting' olf the tivojointe 3l und the fore joint being' pivoted. on e pin (32, whichextendf; through the rigid member 3l. into the plate ll. The joint 33 olthe thnmh also is connected h v means of the linlcr with n bifurcutetllever sliihible in the loiver surface ot the wrist plete ll. The link isSecured to the joint 33 b v the pivot 59, :unl is' attached to the lever58,. which ifs pivotefl on the pin 57 by menne of the pin (if, Thebifurcuted portion GO or the lever 58 strmllee the shank ol the screw-ln und it is obvious. therefore, that upon iliepluren mentof the slide1G 'with respect lo the pluto ll/the `ioint 33 ol che thumb nlm will bemoved. i

The operation or the mo Yable members ot the hund muy he ileecrihed atthe present without reference to the device for loc-ingr these movablemembers in znljuetml position. The strap 5, being attached at (34 (Figi:Gl to the front portion of the yoke e Slight forvurd movement ot the armneceSSni-ily will release the tension under which the strap 5 may be.This movement will, how ever, tension the Strap 6, which is attac-heeltothe rear ortion of the yoke at 65 (Fig. 8)

The pullD o the tension member ll will cause the shaft and the slide 16connected therewith to move rearwardly on the plete A s the holt 39 ofthe Slide i6 is connected hy the link l5 with the Vstationznfv plate 14,it is obvious that the angle of this link 15 with respect to thestationeryplute 14- Will be changed, ami this link 'l5 therefore willswing the plete 13. and hence oleo the pletel 7 about the pertainingpivot lll The yparte may then assume the position shown in Fig. l.

` he movement of the slide 16 in direction toward the. plate 7 naturallywill also move the arms 24 rearwardly, thus causing the middle jointe 17of the lingers to'es'sume the bent position in which they are shown(Fig. l). Inrthis movement the midollo joints 17 will Wing about theShafts 13, with which they are connected by the arms 26. Ae the arms 26are connected hy the linke 28 with the first joints 18, the letter willhe swung oboi'lt 'their pivots 20, thus producing o naturel heni'linggof to the movement ivhici fingern have in i hun l.

The movement of the holt 39 tolvniil liliepln'lo 'i' :ilso- Qnini-fe ilon the lower surlzice of 'the plat unri'lly, :mil thereby connes :ireurr nient oil. the link 32, so that the o this link will swing thethumh nbout its pivot 6:2. The movement strap 3 therefore lczuls lo thcbending' tour lingers und to the inviarli movcsiien the thumb. so that:ill of the member o hond :resume a pofsition in which thf. x rre readyto grasp :in article The invention also contemohiit vision ot menne foryi'ilcii iinfrere' :nul thumh gr This cievicc incluclef 't mounted` onthe low .ne unil guiilcrl in jthe slots; Sil nml i. spring t0 is securelet one end on the ton Surface of' plate other end to :i lug the slide3"? t rough the Slot l ll. lever niounleii on l e ot the Elite il uniloscille pivot S n lng vliicli i:

n suitehle opening in the plut notch between the interni giro l e lef'lof the slhle 371 i, 'to 'the position Shown in sliilc 3l' cannot leavethe nhoivn in Figi. 5. und 'the tained under tension. The outwardlyprojecting; toil facilitates the manuel niljl lever to release orlooking poeition.

A movement et the elifle norm?- Sition. iiniiceted in l? which isSecured to the lever oocil about the pivot 4&5 of the plate :i1-1n 5lrigidly connected with erin 50 les :i portion in engagement button orlnioh 55: on the slide E?" The i'eleesc of the slit/ie m hy 'turning thelevier iii t, :intl the rel tion may he eneoted by the ten i 48, notingthrough t i firmo 5U u the hutte-n 52.

It the elicle is locked against i es shown in Figs. enel 5., lin thumbof the henri con he inoven Strap (5, es indicated above, without ^1 ingany movement of the slide 257 o out being inluence h v the Sonie.however, Athe slicle 3?' is released, the turning movement of the lool.y45, this Slide will he pullel uutoin* in'iiirection toward the thumb 8l.

hy the spring; if, t

"will ongzigo flic @nel f3() of tlir iorrr frl, will forro liis lovorronrnnrrllx' lo urgro iliorrliy fluo fronf' joinf 53 of flw lnnni': :nnltho fingors fo grasping; position. Thos/ i nioinlwrs'of flux lnunl filonnro prrinnnrnrijf in soinlition to rornin lin, :nitido which is graspedby flio suino, until flic strap -frl pulled, wlnoli under concfion ortlio nrnifs 5f), 5f forros lilo sfido 3i" info tlm position in 'which itis shown in Fig. ',lflio lovor LiL-5 lin nur); lock 'ho nlido 3'!" inthis "posi-- tion. ns long :is iblio lover i5 is lxolil, ont of? finslooking posifion1 rho oui-wil onlin: of the @lido 3i' ongnging im Enviarinni onrli fcnsion movement of ille sirop cron fina iingrers lo oiosoover' flue nr'iirir, no lnn", in'nnzitorinl of flio sii/io of @lionrtioio, flio artificial linnd will retain flio zirf'iclo.

if filo hand has been moved lo grasping position, and if the tensionmonilier :3 is :icfuntudi it is obvious fluit the, return of lio nlnto4" to tho original position (nor, show. in the drawing) with tho.simulnnoons release of tho tonsion on fili@ inninlier f3, will lnivotho ofoot of' sfrofiiliing alle hund info that position in which if, isshown in Figs. :2, 23, and

l clnini:

l. lin :in :artificial Wind, the combination or :L foro arm sleevo; apluto pivotnlly inountoii there-zon; another pinto slidabiy inounftod onSuid first named pinto; fingers consisting; of several joins, undfonsion oloinonts connected with bolli oi'i sniff. platos, tho finit`innnod plaire boing Soonroxl izo one joint or' each finger sind tirosecond minimi plate boing secured to anoi'lior fingor joint of @nonringer.

in an. artificial arm, the ooinbinntioin with zi, foro zirrn sleeve., ofn plnl'o 'rigid in sind sleeve, another plato pivotnlly mount ori insaid arm slesvo; finger joints niif'otnlly inoin'iftoil on said secondplate; n third pinto Hlnlulily mounted on said second nnmoti plato;olier finger joints movnbly connoiffod with said third pinto; anal nfonsion nloinont for moving said riiirrl ninnod pinto on oo nl secondnamed plato and `for moving` snifl second named pluto in sind forozii-1n sloovo with respect to sind first plain.

3%. In nn artificial arm, the combination, 'with a, foro urn! sloovo, ofn plate pivo'tnlly mounted in said nrin sleeve; finger joints .scour-oilfo Suid pluie; :i pinto Slirlnbly ,mounted on sind fil-.sin nznnoilpintan finger joints sooureil to said soooinl plain, n tliunilo root; aUlnnnlo joint; moons connecting Swirl ifnnnb joinfl with sind sliolziolopluto, anni n tension elomoni, soonroil io said slirinblro plinio:nlpforl lo produce rolnffivo movomoin; hormoon sind. fingror jointsanni Sniff, fnnnil joints wlion sniil slidzxlilo plnfo moro] withi'ospoof, to flin pivotal plzno lin :in nrtificinl nrln, flu-ycombination, willi tiro foro anni Sloovo, ofA ai 'pluto pivotriiymonnorl in said, sinora; finger joinfs sorurefi ro smid pinto, @noi-infrpiani @ini niilj.' inonnf'ori on mini firn innnoii nlnf'o; fingiri'oinfs oonnocioifl .vifi .f-zniii nlno: n rlnnnl) join, p' ziilljgfinonnjoil on solo firs-i; pinto; nir-ni sliiiin snirl soo ond pluton'ifli rofipoof; ro glio fio@ nznnorl piano :nul for causingnroi'onionf's of sui/l fingor johns, :imi moons ronnrr ilio liuiniijoini; willi .siiilnililo pinto for moving sind. lnnno join.

in :in :lriiirinl nrin?, jin, combination of :i foro :,arin sfooio; n,plinio pivoiwilly sur pororl liuu'ifin; iinfnr ininis moaning' sof li onlin. 'fon fini'- fyin'ril to :inni 'fiuto of sind pini@ wonincnouns :nulflio gfuicloil on will pluto; n mision nivuilaor soi cnrml lo annislirlo nml mlnpfod fo onuso Llispinconufnt of sani plain upon iis sup-vportn'inn onsion is applied; links uxlonrling 'from swirl slinlo o sniflsouonil fingg'or jointn; liixfl fingor joinfs; vAnil linln` oxrondingrfrom Suid inirlrllv fingir-r joints to miiil tliiril. finger jointswinlrriy upon sllil-- ing displnooniout of flic salido on l'ln' hivolnlpinto all of siiiil fingrr joinfn nlfrr flnil nnggjnlni.' posi'fionwiili respect 'o oznli otlior.

i'. in nn nrfifirinl min. lli@ coniliinnfiioin' i with n foro nrlnslcovo7 oi' n plnfo piro'ml in .smid nlni sloovo; finger joints pivomllo snifi pinto; n sliilo gruiilml in snil'i plnlo; lingen.' jointsniovnlily svrln'oil fo .sniil sli l n l10nsion inonilinr :nlzipf'orl toilisplmr sniil slirlo will; respect, lo snirl 'pinto :unl Huid pintowith respect to ifs suniort :ind .said fingor joints roini'ii'oly fnooncll ollior; n iingror mindingh fluvial; )nouns for normally l1lnling;` sziifl dovioo in n, posit/ion in wliioii .it (loos notinfliwnoo rln: movement of ilio oflior inonxbors of' llio nrifioinl:irin7 anni monns for pornnnwnfly influencing said sfido tlirougrlisiiiil finger lioinling loi/ico when .Cinisi fonico in rolozisoil.

fl. in :in artificial nrnn lili@ monili/innfion7 Willi 'foro mountedliioroin; fingg'or joints pivoinlly soonrorl fo snifl pinto; :i sliclogniilocl on sind plinio; oilnr fingor joints inovnloly isoonrod io smidslide; :i tension oloinont secured to sind slide and adopted to dispiaceSuid slide Wili respect to said plate and said plate with respect toeach other; another tension element; means under the control of saidother tension element for yieldingly pressing said slide in apredetermined direction, and locking means for said last named device.

9. In an artificial arm, the combination, with a fore arm sleeve; of aplate; finger joints pivoted thereto, a slide on one surface of saidplate; finger joints movably connected with said slide; a levercontrolled by said slide and mounted on the other surface of the plate;another slide on the other surface, said other slide being provided witha portion adapted to act on the said lever and to displace said firstnamed slide in a predetermined direction.

10. In an artificial arm, the combination of a plate, a slide mounted onone sidey thereof; finger joints controlled by said slide; a thumbactuating lever mounted on the other surface of said plate; means forcontrolling said thumb actuating lever through said first named slide,`a second slide mounted on the other surface of said plate having .acurved edge in engagement with said level', and a spring mounted on thefirst mentioned surface of said plate for forcingI said second slide ina predetermined direction to bring the curved edge into engagement withsaid lever.

11. In an artificial arm, the combination of a plate; finger joints; aslide controllingsaid finger joints mounted on the top surface ofsaid'plate; a thumb lever mounted on the bottom surface of the same,connections between said slide and lever for actu ating the thumb andfinger joints upon displacement of said slide; a tension element fordisplacing said slide; a second slide on the bottom surface of Saidplate having a notch in one edge thereof, a 'leve1 adapted to enter saidnotch and to lock said second slide iny predetermined position, and atension element connected With said second slide for causing`displacement of said slide when released from its lock.

l2. ln an artificial arm, the combination of a plate; finger joints,thumb joints; ten-- lsaid tension elements and essence sion elements;means b..

jointe ing the same, said actuating" m movable on said plate; a, s iadapted to move said actuan" a position in which the lingers grasp anarticie, independently ope. means for lockingv said'slide in inoperaposition; a spring for yielding'ly moiY said slide to operative positionand t' sion element attached to said sl de for ocoming the action ofsaid 18. In an artificial a n, the coinbiin with the fore arm sleeve, ofplate r ally mounted in said sleeve; ,e r secured to said plate; anothermounted on said .first .na-med f guided to move in a. prcdetermi tionthereon; finger joints conn said second plate; thumb jol mounted on saidfirst plate; me:L ing said second plate with respect first plate indirection towa i and from said finger joints, and n ing the thumb jointwith sait?l se; for moving said tlnnnb joint in a substantially at rightangles 'to the joint.

14. In an artificial arm, the combination of a fore arm sleeve; a platepivo ported therein; ting-er jointe mov cured to said plate; a slide enthe 'o plate; means for guiding` direction toward and away from saidfink joints; a tension element connected wi' said slide; another slidemount l plate; a spring permanently actin other slide; said second slidebei.. in a direction substantially :i the first named slide, and metYbetween 'the two s" for iin des first named slide through said secondnamed sliden Signed by me t Copenhagen,

lvfVitnesses Martinus; Unes., ilona,

